Strategic Feasibility and Trade-Offs in Industrial Decarbonisation
The strategic integration of green hydrogen constitutes an indispensable pathway for decarbonising energy-intensive heavy manufacturing, particularly where high thermal demands and inherent process chemistry preclude direct electrification. In sectors such as primary steelmaking and petrochemical synthesis, hydrogen functions not only as a clean energy carrier but also as a zero-emission chemical reducing agent capable of displacing fossil carbon directly ("Green Hydrogen Integration for Decarbonization," 2024). The capacity of water electrolysis powered by dedicated renewable electricity to eliminate deep-seated process emissions positions green hydrogen as a cornerstone of industrial transition strategies ("Blue Hydrogen vs. Green Hydrogen," 2026). However, critical perspectives highlight substantial systemic hurdles and efficiency penalties. The production, transport, and storage of green hydrogen entail significant conversion losses, which risk diminishing net environmental benefits if power grids remain carbon-intensive or renewable supply is constrained ("Green Hydrogen Integration for Decarbonization," 2024). Moreover, transitional pathways such as blue hydrogen derived from fossil gas with carbon capture and storage present lower immediate operating complexities, challenging the uncritical prioritization of capital-intensive electrolysers ("Blue Hydrogen vs. Green Hydrogen," 2026). Nevertheless, prolonged reliance on fossil feedstocks bound to carbon capture sustains upstream fugitive emissions and fossil fuel lock-in. Consequently, while overall energy balances and deployment methods must be meticulously assessed to prevent marginal abatement outcomes, targeted adoption of green hydrogen in non-electrifiable heavy processes represents the only viable long-term industrial solution.